SAGA-GIS Tool Library Documentation (v6.1.0)

Tool ETpot (after Hargreaves, Table)

Estimation of daily potential evapotranspiration from daily average, minimum and maximum temperatures using Hargreave's empirical equation. In order to estimate extraterrestrial net radiation geographic latitude of observation and Julian day have to be supplied too.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputDataTable (input)TABLE--
OptionsJulian DayTable fieldJD--
Mean TemperatureTable fieldT--
Minimum TemperatureTable fieldT_MIN--
Maximum TemperatureTable fieldT_MAX--
LatitudeFloating pointLAT-Minimum: -90.000000
Maximum: 90.000000
Default: 53.000000

Command-line

Usage: saga_cmd climate_tools 6 [-TABLE <str>] [-JD <str>] [-T <str>] [-T_MIN <str>] [-T_MAX <str>] [-LAT <double>]
  -TABLE:<str> 	Data
	Table (input)
  -JD:<str>    	Julian Day
	Table field
  -T:<str>     	Mean Temperature
	Table field
  -T_MIN:<str> 	Minimum Temperature
	Table field
  -T_MAX:<str> 	Maximum Temperature
	Table field
  -LAT:<double>	Latitude
	Floating point
	Minimum: -90.000000
	Maximum: 90.000000
	Default: 53.000000